From: Hans Kristian Rosbach <hk-git@circlestorm.org>
Date: Wed, 15 Apr 2026 11:39:54 +0000 (+0200)
Subject: Fix UBSAN implicit conversion warning in inftrees.c.
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=44d0529a6ff0ec83cfcfa597d90c7559a06cc7cb;p=thirdparty%2Fzlib-ng.git

Fix UBSAN implicit conversion warning in inftrees.c.

Co-authored-by: Nathan Moin Vaziri <nathan@nathanm.com>
---

diff --git a/inftrees.c b/inftrees.c
index 1320eb988..d65e6a9ce 100644
--- a/inftrees.c
+++ b/inftrees.c
@@ -342,7 +342,7 @@ int Z_INTERNAL zng_inflate_table(codetype type, uint16_t *lens, unsigned codes,
         } while (fill != 0);
 
         /* backwards increment the len-bit code huff */
-        rhuff += (0x8000u >> (len - 1));
+        rhuff = (uint16_t)(rhuff + (0x8000u >> (len - 1)));
         huff = zng_bitreverse16(rhuff);
 
         /* go to next symbol, update count, len */